<?php namespace App\Http\Controllers\V1\Admin\General; use App\Http\Controllers\Controller; use App\Services\SerialNumberFormatter; use Illuminate\Http\Request; class NumberPlaceholdersController extends Controller { /** * Handle the incoming request. * * @return \Illuminate\Http\Response */ public function __invoke(Request $request) { if ($request->format) { $placeholders = SerialNumberFormatter::getPlaceholders($request->format); } else { $placeholders = []; } return response()->json([ 'success' => true, 'placeholders' => $placeholders, ]); } }